#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID "TMPL6M5Zob_9L"
#define BLYNK_TEMPLATE_NAME "Pemberian Pakan Ikan Berbasis IOT"
#define BLYNK_AUTH_TOKEN "NyWW6tu_VRPUGhP2xSIBQ_IYd5BL2WJS"
#define ECHO_PIN 15
#define TRIG_PIN 4
#define vibrator 5
#define buzzer 18
int a = 0;
int indikator = 27;
#include <ESP32Servo.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
Servo myservo;
BlynkTimer timer;

void setup() {
  pinMode(2, OUTPUT); // Change LED_BUILTIN to pin 2 or other pin number
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(vibrator, OUTPUT);
  pinMode(indikator, OUTPUT);
  Blynk.begin(auth, ssid, pass);
  timer.setInterval(1000L, sendSensor);
  myservo.attach(2);
  myservo.write(0);
  Blynk.virtualWrite(V2, 0);
  Blynk.virtualWrite(V5, "Tertutup");
  Blynk.virtualWrite(V4, "Vibrator OFF");
  Blynk.virtualWrite(V0, "Buzzer OFF");
  Blynk.virtualWrite(V3, 0);
}

void loop() {
  Blynk.run();
  timer.run();
}

void sendSensor() {
  digitalWrite(indikator, HIGH);
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  int duration = pulseIn(ECHO_PIN, HIGH);
  int distance = duration * 0.034 / 2;
  
  if (a == 0) {
    if (distance >= 20 && distance <= 100) {
      Blynk.virtualWrite(V1, "Pakan Masih Ada, Ketinggian " + String(distance) + " Cm");
      Blynk.virtualWrite(V0, "Buzzer OFF");
    }
    if (distance > 100 && distance <= 130) {
      Blynk.virtualWrite(V1, "Pakan Mau Habis, Ketinggian " + String(distance) + " Cm");
      Blynk.virtualWrite(V0, "Buzzer OFF");
    }
    if (distance > 130) {
      Blynk.virtualWrite(V1, "Pakan Habis, Ketinggian " + String(distance) + " Cm");
      Blynk.virtualWrite(V4, "Vibrator OFF");
      Blynk.virtualWrite(V0, "Buzzer Aktif");
      Blynk.virtualWrite(V5, "Katub Tertutup");
      Blynk.virtualWrite(V2, 0);
      digitalWrite(vibrator, LOW);
      myservo.write(0);
      delay(15);
      tone (buzzer, 120);
      delay(500);
      noTone(buzzer);
    }
    delay(100);
  }
  if (a == 1) {
    Blynk.virtualWrite(V1, "Segera Isi Pakan");
    noTone(buzzer);
    Blynk.virtualWrite(V0, "Buzzer Tidak Aktif");
  }
}

BLYNK_WRITE(V2){
  myservo.write(param.asInt());
  int pinValue = param.asInt();
  if (pinValue > 5) {
    digitalWrite(vibrator, HIGH);
    Blynk.virtualWrite(V5, "Terbuka " + String(pinValue) + " Derajat");
    Blynk.virtualWrite(V4, "Vibrator ON");
  } else {
    digitalWrite(vibrator, LOW);
    Blynk.virtualWrite(V4, "Vibrator OFF");
    Blynk.virtualWrite(V5, "Terutup " + String(pinValue) + " Derajat");
  }
  if (a == 1) {
    Blynk.virtualWrite(V2, 0);
  }
}

BLYNK_WRITE(V3){
  int reset = (param.asInt());
  if (reset == 1){
    digitalWrite(vibrator, LOW);
    myservo.write(0);
    delay(15);
    Blynk.virtualWrite(V2, 0);
    a = 1;
  } else {
    a = 0;
  }
}